Design and Construction of Automatic Monitoring System for Open-pit Coal Mine Slopes

[Objectives] To monitor the stability of open-pit coal mine slopes in real time and ensure the safety of coal mine production. [Methods] The automatic monitoring system of coal mine slope was explored in depth, and the core functions of the system were designed comprehensively. According to the design function of the automatic monitoring system, the slope automatic monitoring system was constructed. Besides, in accordance with the actual situation of the slope, the monitoring frequency of slopes was set scientifically, and the key indicators such as rainfall, deep displacement and surface displacement of the slopes were monitored in an all-round and multi-angle way. [Results] During the monitoring period, the overall condition of the slope remained good, and no landslides or other geological disasters occurred. At the same time, the overall rainfall in the slope area remained low. In terms of monitoring data, the horizontal displacement and settlement of the slopes increased first and then tended to be stable. Specifically, the maximum horizontal displacement during the monitoring period was 22.74 mm, while the maximum settlement was 18.65 mm. [Conclusions] The automatic slope monitoring system has obtained remarkable achievements in practical application. It not only improves the accuracy and efficiency of slope stability monitoring, but also provides valuable reference experience for similar projects.